Relativistically expanding spherical emitters

被引：3

作者：

Eriksen, E

Gron, O

机构：

[1] Univ Oslo, Inst Phys, N-1316 Oslo, Norway

[2] Oslo Coll, Dept Engn, N-0254 Oslo, Norway

[3] Univ Oslo, Inst Phys, N-1316 Oslo, Norway

来源：

AMERICAN JOURNAL OF PHYSICS | 2000年 / 68卷 / 12期

关键词：

D O I：

10.1119/1.1286312

中图分类号：

G40 [教育学];

学科分类号：

040101 ; 120403 ;

摘要：

We demonstrate several relativistic effects associated with expanding spherical sources of light. We show that if the surface lights up for sap a month, it may be seen for a few seconds only if it expands sufficiently fast. Also it is demonstrated how the observed properties of the light sourer are modified by aberration and the Doppler effect, The apparent luminosity as a function of time is calculated and shown graphically. Modifications due to the motion of the light sourer away from the observer are calculated. (C) 2000 American Association of Physics Teachers.

引用

页码：1123 / 1127

页数：5